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Conserving approximations for strongly correlated electron systems - Bethe-Salpeter equation and dynamics for the two-dimensional Hubbard modelA semianalytical approach is described for strongly correlated electronic systems which satisfies microscopic conservation laws, treats strong frequency and momentum dependences, and provides information on both static and dynamic properties. This approach may be used to treat large systems and temperatures lower than those currently accessible to finite-temperature quantum Monte Carlo techniques. Examples of such systems include heavy-electron compounds, organic Bechegaard salts, bis-(ethylenedithiolo)-TTF superconductors, and the oxide superconductors. The technique is based on the derivation and self-consistent solution of infinite-order conserving approximations. The technique is used to derive a low-temperature phase diagram and dynamic correlation functions for the two-dimensional Hubbard lattice model.
Document ID
19890045076
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bickers, N. E.
(California Univ. Santa Barbara, CA, United States)
Scalapino, D. J.
(California Univ. Santa Barbara, CA, United States)
White, S. R.
(California, University Santa Barbara, United States)
Date Acquired
August 14, 2013
Publication Date
February 20, 1989
Publication Information
Publication: Physical Review Letters
Volume: 62
ISSN: 0031-9007
Subject Category
Solid-State Physics
Accession Number
89A32447
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-17853
CONTRACT_GRANT: NSF DMR-86-15454
Distribution Limits
Public
Copyright
Other

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